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经营范围
发明名称
Improvements in or relating to hack saw frames
摘要
申请公布号
GB537934(A)
申请公布日期
1941.07.14
申请号
GB19400004111
申请日期
1940.03.05
申请人
JOHN WATTS (SHEFFIELD AND LONDON) LIMITED;THOMAS HARLOW EDWARDS
发明人
分类号
B23D51/12
主分类号
B23D51/12
代理机构
代理人
主权项
地址
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